YBR125 motorcycle fire nozzle cap, the interface size and YBR125 spark plug, high voltage package completely match, direct plug and unplug installation without adjustment; Adopt high temperature insulating rubber material, effectively isolate high voltage ignition current, avoid leakage, fire jump problem, ensure ignition stability; Both ends of the interface for sealed structure, to prevent dust, water vapor into the spark plug interface, to avoid poor ignition contact; Suitable for high temperature environment of engine room, rubber material anti-aging, non-cracking, prolong the service life of components; One end of the spark plug, the other end of the high voltage cable can be connected, easy to operate without tools.